Holiday Shipping & Returns Policy

Holiday Returns Policy

Just in time for the holidays, we've extended our normal 30-day return policy. Any order placed between November 25, 2016 and December 25, 2016 will be accepted for return until February 5, 2017. RMA numbers will be given out until 7:30 PM EST on February 3, 2017. The remainder of our return policy remains in place and must be followed. Please review the rest of our return policy

Gift Certificates by Christmas

Physical Gift Certificates: order by 5 PM EST on 12/18

Electronic Gift Certificates: order by 5 PM EST on 12/23

Custom Bama Chip/Tuner and Mounted & Balanced wheel and tire orders must be placed no later than December 14th, 2015 to ship free for Christmas delivery.

*Free Christmas Shipping is free / guaranteed to arrive by Christmas for the lower 48 states only. APO / FPO and Canadian, Guam, Puerto Rico, US Virgin Islands Customers: Unfortunately we are unable to guarantee shipping times to your addresses, so the above deadlines do not apply. Items being shipped via freight also cannot be guaranteed in time for delivery.

Features & Details

Product Resources

Protect Your Investment. The most effective way of ensuring long engine life in either a heavily modded racecar or daily driven 'Stang is regular oil changes. And there is no better oil available for your Pony than Royal Purple. Royal Purple is a full synthetic oil that contains a patented additive to reduce engine wear and protect your rings, cylinders, and bearings more than any other. It also sticks to your engine's internals after shutdown to protect your engine upon startup.

Superior Performance. Unlike other oils, Royal Purple continues protecting your engine even at high temperatures, making it a great choice for every Mustang. It lubricates better regardless of temperature, ensuring your Mustang will run right whether you're stuck in a traffic jam or going for FTD (fastest time of the day). Many Mustang owners even report better throttle response or even horsepower gains with Royal Purple.

Resists Breakdown. Royal Purple is more resistant to breakdown than other oils, meaning you can go longer on an oil change without worrying about engine damage.

Application. This Royal Purple Oil is a 10w40 weight. Check your Mustang's oil cap or owner's manual for the correct weight for your engine.

I4 needs 6 quarts for a complete oil change.

V6 needs 5-6 quarts for a complete oil change.

V8 needs 5-8 quarts for a complete oil change.

Please Note. If you are unsure how many quarts of oil you will need for a complete oil change, please refer to your vehicles owner manual or contact your local Ford dealer.

Royal Purple 10w40 Motor Oil

Word on The Street

I have know American Muscle to be a very good website for a very long time. However, up until recently, I have never bought anything from them. Now that I have, I see that their Customer Service is above and beyond the typical website. They are actually interest, KNOWLEDGEABLE, and give a crap about what you are trying to do! I absoultely think that they are the best place on the web to find mustang parts.

Meet Our Team

After owning several other Mustangs including 99 Cobra and a bunch of Fox body’s I finally decided it was time for a new car. One that would be reliable, fast, and be able to cruise with the AC on in the summer. When the S550 platform came out I knew I had to have one.